November 30, 2020, Nighttime Operation Report

2020_11_30_4th.JPG
Hello, everyone. We are NEXUS development project team in Nihon University. Your receiving reports are used for confirmation of NEXUS state. Thank you for your cooperation. We will report the result of nighttime operation today.

CW custom mode
NEXUS are orbiting at CW custom mode now. CW format is following.
JS1YAVNEXUS04 (Sattime : 8words) (SW info : 2words) (Reset info : 10words) (Bat Vol : 4words) (Gyro x : 4words) (Gyro y : 4words) (Gyro z : 4words)
Total : 49words (characters)

○Operation Result
We performed nighttime operations twice.
"CW custom operation(437.075MHz)",”Video data downlink (FSK transmitter,GMSK4k8,435.900MHz)”.

・CW Operation
For CW telemetry format, please have a look at the pdf below.
http://sat.aero.cst.nihon-u.ac.jp/nexus/download/NEXUS_CW_telemetry_format_e.pdf
4th : CW:S9[dB], Bus Voltage: 4.101 [V], Angular velocity: 7.735 [deg./s]
5th : CW:S9[dB], Bus Voltage: 4.100 [V], Angular velocity: 7.431 [deg./s]

4th:”Video data downlink (FSK transmitter,GMSK4k8,435.900MHz)(Size:5987328 SC_S:22, SSC:31, SP:768, ESC:31, EP:1023)"
Number of received packets
HORIZONTALLY POLARIZED WAVE : 795
VERTICAL POLARIZED WAVE : 18
radio interference : weak

5th:”Video data downlink (FSK transmitter,GMSK4k8,435.900MHz)(Size:5987328 SC_S:22, SSC:31, SP:768, ESC:31, EP:1023)"
HORIZONTALLY POLARIZED WAVE : 793
VERTICAL POLARIZED WAVE : 163
radio interference : weak

○Next Operation Schedule
1st : "CW custom operation(437.075MHz)", "Image data downlink(FSK transmitter,GMSK4k8,435.900MHz)(Size:5987328 SC_S:22, SSC:31, SP:768, ESC:31, EP:1023)".
2nd : "CW custom operation(437.075MHz)", "Image data downlink(FSK transmitter,GMSK4k8,435.900MHz)(Size:5987328 SC_S:22, SSC:32, SP:0, ESC:32, EP:255)".

2020/12/1      AOS     |       PE      |      LOS
------------------------------------------------------------------------------------------
Time(JST)    8:06:27 | 8:12:03 | 8:17:38
Azimuth      21.76  |   97.54   |  173.27
Elevation      0.02   |    33.06   |   -0.02
------------------------------------------------------------------------------------------
Time(JST)    9:40:32 | 9:45:18 | 9:50:04
Azimuth      347.56  |   291.49   |  235.16
Elevation      0.01   |    13.05   |   -0.01
------------------------------------------------------------------------------------------

○Latest TLE
1 43937U 19003F 20334.89035298 .00003835 00000-0 15592-3 0 9999
2 43937 97.2057 19.8445 0023724 3.9938 356.1486 15.24869023103848

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